Log Message:
Update ruby-webrobots to 0.1.2.

* Make the default `http_get` proc act more like Googlebot.

  - It only allows up to 5 redirect hops rather than 10.
  - It treats too many redirections as full allow.
  - It treats any 4xx error as full allow.

* Fix context/should wording

* Follow the deprecation warning from SimpleCov::Formatter::MultiFormatter

* Update real world tests, introducing Webmock+VCR